Sennheiser HD 400S

These offer brilliant noise isolation and are very comfortable, The low-end is a little over exaggerated in my opinion and isn't exactly clear, the high-end is lacking a little but good for their price

The build quality is fairly ok though it does feel like they could be broken easily.

The hinge that lets them fold up feels like it will become significantly weaker over some years of use.

I love strings, and the HD 400S can fully restore the beauty and authenticity of strings.